Marathon flight road case with spring action handles, dual anchor rivets, easy locking fit and tongue. Side wings for M-series racks, fits 6U and up. 19" x 15" extra space with wing panel that can carry up to 40lbs of equipment. It will allow more room for gear and enhance performance area. Easy attachement on 6U slant rack systems and quick release when you want to take it out. Made from high quality materials with Marathon's outstanding reliability and protection.